Active interference suppression in frequency-division-multiplexed quantum gates via off-resonant microwave tones
The paper proposes Active Interference Suppression (AIS) to improve gate fidelity in frequency-division-multiplexed quantum gates by using off-resonant microwave tones. By carefully choosing pulse widths based on frequency spacing, it shows how these tones can reduce crosstalk and mitigate errors caused by fast oscillations neglected in simpler models, offering a way to scale quantum processors.